桡骨 Traditional form: 橈骨 Pinyin (reading): ráogǔ Definitions: radius (anatomy) bone of the forearm Characters: 桡 - radius, forearm; a bent or twisted piece of wood 骨 - bone; skeleton; frame, framework Traditional characters: 橈 - radius, forearm; a bent or twisted piece of wood 骨 - bone; skeleton; frame, framework